Combing machine



H. DOLDER cpusme MACHINE Aug. 21, 1934.

Filed Oct. 18, 1933 Fig.2.

Patented Aug. 21, 1934 rFicE COMBING, MACHINE tions France Mcaniques,

Mulhouse, Haut-Rhin,

Application October 18, 1933, Serial No. 694,188 In France December 8,1932 1. Claim.

The present invention relates to rectilinear combing machines of theHeilmann type, used for combing wool, ramie, schappe, artificial silkand other similar fibres, and more particularly "of the type having anoscillating nipper and stationary drawing-off means. Its object is acombination of the device regulating the distance between the nipper andthe drawing-01f rollers .....with a mechanism enabling the main parts of"the machine such as the circular comb, the burrknife combinedtherewith, the nipper, the shovel plate etc. to be readily accessible,by a single action, for regulation, maintenance or replacement, whileensuring that when such operation has been completed the various partscan be immediately restored to their proper relative positions.

To this end the drawing-01f mechanism while normally fixed is mounted onmovable supporting members and combined with guiding means, stops andlocking means serving to fix and to lock the drawing-off mechanism innormal position, while to give easy access to the operative .,parts ofthe machine, they permit the drawing- "01f mechanism to be retracted ina single movement and over a relatively considerable distance, the saidsupporting members being preferably pivotally mounted so as to allowdisplacement ,,of the drawing-off mechanism substantially along 'thedirection the silver takes during drawing-off.

An example embodying the invention is shown in the accompanying drawing.Figures 1 and 2 are side elevations, partly in section, thereof fordifferent positions of the parts. Figure 3 is a section on the line abof Figure 2.

The circular comb 1 is only indicated diagrammatically. The lower andupper nipper jaws 2, 3 are shown in open position, corresponding to theperiod of drawing-off of the fibres.

9.11 eye 12 to which is attached a threaded rod 13 which passes througha tube 14. The latter can slide in a split clamp 15, of which Figure 3shows a section on line a-b of Figure 2. Each clamp 15 (Figure 3)carries a stalk 16 pivotting "in a hole in the corresponding frame 11; ascrew 17 enables the tube 14 to be gripped by the clamp 15.

The dotted line 18 indicates the position occupied by the sliver offibres during the drawingoif period. The distance e between the nip ofthe rollers 5, 6 and the lower nipper jaw 2, i. e. the setting of themachine must be adjustable to suit the nature of the material to becombed, by changing the position of the drawing-off rollers 5, 6, andthe latter for this purpose should be moved in a direction parallel tothe line 18. 'It is important therefore to locate the pivots 10 of thearms 9 on a line 19 extending from the nip of the rollers 5, 6 at aright angle to the line 18 when the drawing-off rollers are inmid-position with respect to the nipper jaw 2, and to locate thesepivots as far as possible from the drawing-off rollers so that the smalldisplacements of the rollers concentric to the pivots 10 are practicallyalong the line 18 Each threaded rod 13 carries in addition to the tube14, two regulating nuts 20 with washers 21. To vary the setting distancee it sufiices to adjust the nuts 20 which produces a swinging of theassembly 5, 6, 8, 9 about the pivots 10.

Loosening of the clamping screws on the other hand permits the tubes 14to slide freely in the clamps 15 between the positions limited by thewashers 21 and this enables the support 8 and the drawing-01f rollers tobe moved or withdrawn into the position shown in Figure 2. The rollersand their support are thus moved a considerable distance apart from theother machine parts which facilitates access to the circular comb, thenipper and other parts associated therewith.

A special device is provided for facilitating this withdrawal of thedrawing-01f rollers. This device consists of a shaft 22 borne in boththe frames 11 of the machine, two arms 23 fastened on this shaft andcoupled by connecting rods 24 to the support 8 carrying the drawing-offrollers 5, 6. A lever 25 terminating in a handle 26 and keyed upon theshaft 22, enables the assembly consisting of the support 8, the arms 9and the rollers 5, 6 to be easily displaced, when the clamping screws 17are loosened. The original position of the rollers 5, 6 with respect tothe nipper jaw 2 is restored when by manipulating the lever 25, 26 thewashers 21 (Figure 1) abut the clamps 15. Tightening of the screws 17then locks the parts in this position.

It is obvious that other combined mechanisms for regulating andmanipulating the drawingoif rollers could be designed, different fromthat illustrated by way of example in the drawing.

sisting of movable supporting members carryingthe drawing-off mechanismand pivotally mounted at a relatively great distance apart from thedrawing-01f mechanism, guiding rods connected to said supportingmembers, guide tubes thereon, pivotally mounted clamps for said tubesand adjustable stops on said rods, these parts serving to fix and tolock the drawing-off mechanism in normal position, while to give easyaccess to the operative parts of the machine, they permit thedrawing-off mechanism to be retracted in a single movement and over arelatively considerable distance apart from the other operative parts ofthe machine, for the purpose specified.

HENRI DOLDER.

